根据对话内容,在每小题的空白处填入适当的话语,使对话意思完整。
A. Hi, Tom. I haven’t seen you for a long time.
__________________________________? (66)
B: I have been to America.
A: Really? _________________________________(67)?
B: I came back two days ago.
A: _________________________________(68)?
B: Yes. I saw many beautiful places during the flight and I had
a good time on Christmas Day.
A: _______________________________(69)?
B: Certainly! And some of the presents are very nice.
A: _______________________________(70)?
B: I’ve already returned to school. I must work hard at my
Chinese.